Hi all,
I am new to GNURadio. I need to do realtime FFT (GUI is not required).
I need to feed this FFT to other components of the system so I ned
simple FFT values of the signal. I tried hacking the fftsink2.py and
was able to get the values but the problem is that the rate of data is
very less. I am getting 15-16 FFTs in a second. This is too less.
Can you suggest me a way to improve this?
Thanks.
Mayank
On Mon, Nov 10, 2008 at 04:02:12PM -0500, Mayank G. wrote:
Hi all,
I am new to GNURadio. I need to do realtime FFT (GUI is not required). I
need to feed this FFT to other components of the system so I ned simple
FFT values of the signal. I tried hacking the fftsink2.py and was able to
get the values but the problem is that the rate of data is very less. I
am getting 15-16 FFTs in a second. This is too less.
Can you suggest me a way to improve this?
Just use the gr.fft_vcc block.
Eric
On Mon, Nov 10, 2008 at 4:08 PM, Eric B. [email protected] wrote:
Just use the gr.fft_vcc block.
Eric
On a related note, I am curious if anyone has looked into using djbfft
as opposed to FFTW? I know it hasn’t been updated in a while, but it
appears to be extremely fast:
http://cr.yp.to/djbfft.html
Just wondering.
Brian
Hi,
I tried using that. But I think it returns some sptr datatype and I am
unsure how to use it and get all the data points out of it.
Can you guide me through that?
Thanks.
On Mon, Nov 10, 2008 at 04:24:44PM -0500, Mayank G. wrote:
Hi,
I tried using that. But I think it returns some sptr datatype and I am
unsure how to use it and get all the data points out of it.
Can you guide me through that?
Sorry, no.
Eric
Thanks for the response.
But, how can I interface the USRP and FFTW or DJTFFT?